Sapphire Defense says it is 7x stronger than an unprotected screen. What does that mean?

In independent 3^rd party testing conducted at Ohio State University, Sapphire Defense dramatically outperformed other hybrid and film screen protectors in terms of the impact force required to break a smartphone screen as measured by the Gardner Impact Test, the ASTM standard for measuring impact forces.

1. A bare smartphone screen required only 6.8 inch-pounds of force before breaking.
2. With Sapphire Defense, the same smartphone screen withstood 57.4 inch-pounds of force before breaking.
3. The closest competitor screen protection only withstood 21.7 inch-pounds of force before the screen broke.